Pumping stations; centrifugal pumps for operation without screen; directives for planning
Edition 1992-03

Reciprocating internal combustion engines - Safety requirements for design and construction of engines for use in potentially explosive atmospheres - Part 3: Group II engines for use in flammable dust atmospheres; German version EN 1834-3:2000
Edition 2000-03

Pumping stations; centrifugal pumps for operation with screen; directives for planning
Edition 1992-03

Determination of fat content of cream; weighing method according to Roeder
Edition 1976-06

Determination of fat content of cream; method according to Schulz and Kley
Edition 1977-07

Limits for wastegas heat losses of baking ovens
Edition 1994-09

Reciprocating internal combustion engines - Safety requirements for design and construction of engines for use in potentially explosive atmospheres - Part 2: Group I engines for use in underground workings susceptible to firedamp and/or combustible dust; German version EN 1834-2:2000
Edition 2000-03

Reciprocating internal combustion engines - Safety requirements for design and construction of engines for use in potentially explosive atmospheres - Part 1: Group II engines for use in flammable gas and vapour atmospheres; German version EN 1834-1:2000
Edition 2000-03

Displacement compressor; thermodynamic acceptance and performance test
Edition 1980-11

Guide for procurement of power station equipment - Part 3-1: Boilers; water tube boilers; German version EN 45510-3-1:1999
Edition 2000-01